The competition was held at Woodside High School in
California near the Silicon Valley headquarters of Meta, Zuckerberg's company
that owns Facebook, Instagram and WhatsApp.
"Competed in my first jiu-jitsu tournament and won some
medals for the Guerrilla Jiu-Jitsu team," Zuckerberg wrote on Facebook and
Instagram.
The 38-year-old tech billionaire told an interviewer last
year that he began studying martial arts during the coronavirus pandemic.
He told podcaster Joe Rogan that the sport's
"primal" nature helped him boost his energy level and tackle
challenges at work.
Zuckerberg trains with coach Dave Camarillo, who has taught
several UFC mixed martial arts (MMA) champions.
Unlike MMA, Brazilian-style jiu-jitsu emphasizes fighting
opponents through holds and control instead of kicks or striking.
Another coach, Khai "The Shadow" Wu, congratulated
the tycoon.
"Yesterday getting to see Zuck compete was pretty epic.
No match was easy and everything was earned. It was an honor to be able to help
coach and offer any advice I could," Wu posted on Instagram.
According to a video posted on social media, at one point
during the tournament Zuckerberg appeared to angrily contest a ref's call after
losing a fight with a competitor.
The video sequence ends with Zuckerberg hugging his
opponent.